3M AF126
Harmonization Code : 3506.10.00.00 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg
Main features
- Low Temperature Cure Option
- Low Pressure Structural Bonding
- Selectable Film Weight Construction
Product Description
3M Scotch-Weld Structural Adhesive Film AF 126 is a thermosetting, nonvolatile modified epoxy film adhesive for structural bonding of metals and honeycomb constructions. Supported film options with protective liners are available in several nominal weights and calipers, allowing the construction to be matched to the required bondline. The film can cure at temperatures as low as 107 deg C, with optimum results from a 121 deg C cure for 1 hour. Negligible volatile byproducts support low-pressure bonding, while uncured tack assists placement during layup.
Key features
- Low Temperature Cure Option: The film can cure at temperatures as low as 107 deg C.
- Low Volatile Cure: Negligible volatile byproducts support low-pressure structural bonding.
- Multiple Film Weight Options: Supported constructions provide selectable nominal weight and caliper.
Applications
Structural bonding of prepared metals and honeycomb sandwich assemblies.
Technical Specifications
No specifications available.
Additional Information
As-supplied / before-processing properties
Values are listed by AF 126 film weight to preserve configuration context.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Film construction | Supported film with protective liners | - | AF 126 family |
| Nominal areal weight options | 147.1; 294.2; 392.3 | g/m2 | 0.030; 0.060; 0.080 lb/ft2 variants |
| Nominal caliper options | 0.127; 0.254; 0.381 | mm | Corresponding weight variants |
| Color by weight | Green; green; red | - | Corresponding weight variants |
| Volatile content | Less than 1 | % | As supplied |
After-processing / final-state properties
Cured bond averages retain film-weight and EC-2320 primer context.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Tensile shear at 24 deg C, 0.030 wt | 31.9 | MPa | Average with EC-2320 primer |
| Tensile shear at 24 deg C, 0.060 wt | 38.6 | MPa | Average with EC-2320 primer |
| Tensile shear at 24 deg C, 0.080 wt | 36.8 | MPa | Average with EC-2320 primer |
| T-peel at 24 deg C, 0.030 wt | 133 | N/25 mm | Average with EC-2320 primer |
| T-peel at 24 deg C, 0.060 wt | 191.4 | N/25 mm | Average with EC-2320 primer |
| T-peel at 24 deg C, 0.080 wt | 164.7 | N/25 mm | Average with EC-2320 primer |
